## Conversion formula

The conversion factor from centimeters to kilometers is 1.0E-5, which means that 1 centimeter is equal to 1.0E-5 kilometers:

1 cm = 1.0E-5 km

To convert 4.2 centimeters into kilometers we have to multiply 4.2 by the conversion factor in order to get the length amount from centimeters to kilometers. We can also form a simple proportion to calculate the result:

1 cm → 1.0E-5 km

4.2 cm → L(km)

Solve the above proportion to obtain the length L in kilometers:

L(km) = 4.2 cm × 1.0E-5 km

L(km) = 4.2E-5 km

The final result is:

4.2 cm → 4.2E-5 km

We conclude that 4.2 centimeters is equivalent to 4.2E-5 kilometers:

4.2 centimeters = 4.2E-5 kilometers

## Alternative conversion

We can also convert by utilizing the inverse value of the conversion factor. In this case 1 kilometer is equal to 23809.523809524 × 4.2 centimeters.

Another way is saying that 4.2 centimeters is equal to 1 ÷ 23809.523809524 kilometers.

## Approximate result

For practical purposes we can round our final result to an approximate numerical value. We can say that four point two centimeters is approximately zero kilometers:

4.2 cm ≅ 0 km

An alternative is also that one kilometer is approximately twenty-three thousand eight hundred nine point five two four times four point two centimeters.

## Conversion table

### centimeters to kilometers chart

For quick reference purposes, below is the conversion table you can use to convert from centimeters to kilometers

centimeters (cm) kilometers (km)
5.2 centimeters 0 kilometers
6.2 centimeters 0 kilometers
7.2 centimeters 0 kilometers
8.2 centimeters 0 kilometers
9.2 centimeters 0 kilometers
10.2 centimeters 0 kilometers
11.2 centimeters 0 kilometers
12.2 centimeters 0 kilometers
13.2 centimeters 0 kilometers
14.2 centimeters 0 kilometers